{"instruction": "You are an expert in named entity recognition. Please extract entities that match the schema definition from the input. Return an empty list if the entity type does not exist. Please respond in the format of a JSON string.", "schema": ["cell line", "cell type", "RNA", "DNA", "protein"], "input": "This activation is mediated by the host transcription factor NF-kappa B [G.Nabel and D.Baltimore, Nature (London) 326:711-717, 1987]."}
{"cell line": [], "cell type": [], "RNA": [], "DNA": [], "protein": ["host transcription factor", "NF-kappa B"]}